SPRINGDALE (AP) — Officials say one worker is dead after a fire at a northwest Arkansas recycling plant.

The fire broke out Wednesday afternoon at Advanced Environmental Recycling Technologies’ plant in Springdale. The company stated three workers suffered burns in the fire and all were taken to area hospitals.

The company said Thursday one of the workers died at a hospital in Springfield, Mo. AERT President Tim Morrison says the company is providing support to families and employees during “this very difficult time.”

Firefighters reported the fire started in a mixing vat.

The company indicated the facility is still offline and the incident remains under investigation.